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AMERICAN SECURITIES LLC

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13F filer, CIK 1475483, NEW YORK, NY

AMERICAN SECURITIES LLC reported $3,754,142,432 across 2 holdings for the quarter ended 2026-06-30, in a 13F-HR filed 2026-08-26.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001140361-26-034405

Period
2026-06-30
Reported value
$3.75B
Holdings
2
Top 10 weight
100%
New
0
Sold out
0

Largest buys vs the previous quarter

None.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
MWHreduced-8,853,170-$301M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q2 2026

Share positions as resolved from 13F-HR 0001140361-26-034405, largest first. % of portfolio is the value over $3,754,142,432, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
MWHSOLV ENERGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 91,773,571 shares; 2026Q2: 82,920,401 shares 82,920,401$2.82B75.21%-8,853,170Timeline
AMTMAMENTUM HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: 43,893,904 shares; 2025Q1: 43,893,904 shares; 2025Q2: 45,026,743 shares; 2025Q3: 45,026,743 shares; 2025Q4: 45,026,743 shares; 2026Q1: 45,026,743 shares; 2026Q2: 45,026,743 shares 45,026,743$931M24.79%0Timeline

How Q2 2026 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001140361-26-034405 base2026-08-26acceptance time not in the bulk data set